diff --git a/3rdparty/pythonqt/CMakeLists.txt b/3rdparty/pythonqt/CMakeLists.txt
index 97849da..9c048f4 100644
--- a/3rdparty/pythonqt/CMakeLists.txt
+++ b/3rdparty/pythonqt/CMakeLists.txt
@@ -69,6 +69,8 @@ set(HEADERS
 
 qt4_wrap_cpp(MOC ${HEADERS})
 
+add_definitions(-DPYTHONQT_STATIC_LIBRARY)
+
 add_library(pythonqt STATIC
   ${SOURCES}
   ${MOC}
diff --git a/3rdparty/pythonqt/src/PythonQtSystem.h b/3rdparty/pythonqt/src/PythonQtSystem.h
index d7131bb..95364c3 100644
--- a/3rdparty/pythonqt/src/PythonQtSystem.h
+++ b/3rdparty/pythonqt/src/PythonQtSystem.h
@@ -42,7 +42,7 @@
 */
 //----------------------------------------------------------------------------------
 
-#ifdef WIN32
+#if defined(WIN32) && !defined(PYTHONQT_STATIC_LIBRARY)
 #ifdef PYTHONQT_EXPORTS
 #define PYTHONQT_EXPORT __declspec(dllexport)
 #else